Valid COF-C02 Exam Dumps Ensure you a HIGH SCORE (2025)
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The SnowPro Core Certification Exam is divided into various sections, each focusing on a different aspect of Snowflake. COF-C02 exam covers topics such as Snowflake's architecture, security, data loading, querying, and performance tuning. Candidates must demonstrate their understanding of these topics by answering multiple-choice questions, and they must score at least 80% to pass the exam.
NEW QUESTION # 284
Which Snowflake feature provides increased login security for users connecting to Snowflake that is powered by Duo Security service?
- A. Single Sign-On (SSO)
- B. Multi-Factor Authentication (MFA)
- C. OAuth
- D. Network policies
Answer: B
Explanation:
Multi-Factor Authentication (MFA) provides increased login security for users connecting to Snowflake.
Snowflake's MFA is powered by Duo Security service, which adds an additional layer of security during the login process.
NEW QUESTION # 285
Which statement MOST accurately describes clustering in Snowflake?
- A. Clustering can be disabled within a Snowflake account.
- B. Clustering is the way data is grouped together and stored within Snowflake micro-partitions.
- C. The clustering key must be included in the COPY command when loading data into Snowflake.
- D. The database ACCOUNTADMIN must define the clustering methodology for each Snowflake table.
Answer: B
NEW QUESTION # 286
What criteria does Snowflake use to determine the current role when initiating a session? (Select TWO).
- A. If a role was specified as part of the connection and that role has not been granted to the Snowflake user, it will be ignored and the default role will become the current role.
- B. If no role was specified as part of the connection and a default role has not been set for the Snowflake user, the session will not be initiated and the log in will fail.
- C. If no role was specified as part of the connection and a default role has been defined for the Snowflake user, that role becomes the current role.
- D. If a role was specified as part of the connection and that role has not been granted to the Snowflake user, the role is automatically granted and it becomes the current role.
- E. If a role was specified as part of the connection and that role has been granted to the Snowflake user, the specified role becomes the current role.
Answer: C,E
Explanation:
When initiating a session in Snowflake, the system determines the current role based on the user's connection details and role assignments. If a user specifies a role during the connection, and that role is already granted to them, Snowflake sets it as the current role for the session. Alternatively, if no role is specified during the connection, but the user has a default role assigned, Snowflake will use this default role as the current session role. These mechanisms ensure that users operate within their permissions, enhancing security and governance within Snowflake environments.
References:
* Snowflake Documentation: Understanding Roles
NEW QUESTION # 287
A user has 10 files in a stage containing new customer data.
The ingest operation completes with no errors, using the following command:
COPY INTO my__table FROM @my__stage;
The next day the user adds 10 files to the stage so that now the stage contains a mixture of new customer data and updates to the previous data. The user did not remove the 10 original files.
If the user runs the same copy into command what will happen?
- A. Only data about new customers from the new files will be appended to the table
- B. The operation will fail with the error uncertain files in stage.
- C. All data from only the newly-added files will be appended to the table.
- D. All data from all of the files on the stage will be appended to the table
Answer: D
NEW QUESTION # 288
Which stream type can be used for tracking the records in external tables?
- A. Standard
- B. Append-only
- C. External
- D. Insert-only
Answer: C
NEW QUESTION # 289
What types of data listings are available in the Snowflake Data Marketplace? (Choose two.)
- A. Consumer
- B. Vendor
- C. Standard
- D. Personalized
- E. Reader
Answer: C,D
NEW QUESTION # 290
How many days is load history for Snowpipe retained?
- A. 14 days
- B. 64 days
- C. 1 day
- D. 7 days
Answer: A
Explanation:
Snowpipe retains load history for 14 days. This allows users to view and audit the data that has been loaded into Snowflake using Snowpipe within this time frame3.
NEW QUESTION # 291
Which columns are part of the result set of the Snowflake LATERAL FLATTEN command? (Choose two.)
- A. PATH
- B. INDEX
- C. CONTENT
- D. BYTE_SIZE
- E. DATATYPE
Answer: A,D
NEW QUESTION # 292
How does Snowflake recommend handling the bulk loading of data batches from files already available in cloud storage?
- A. Use the INSERT command.
- B. Use Snowpipe.
- C. Use an external table.
- D. Use the COPY command.
Answer: D
NEW QUESTION # 293
Which of the following Snowflake features provide continuous data protection automatically? (Select TWO).
- A. Fail-safe
- B. Internal stages
- C. Zero-copy clones
- D. Time Travel
- E. Incremental backups
Answer: A,D
Explanation:
Explanation
Time travel and fail safe are the two continuous data protection features support the recovery of data automatically.
Snowflake provides powerful CDP features for ensuring the maintenance and availability of your historical data (i.e. data that has been changed or deleted):
* Querying, cloning, and restoring historical data in tables, schemas, and databases for up to 90 days through Snowflake Time Travel.
* Disaster recovery of historical data (by Snowflake) through Snowflake Fail-safe.
https://docs.snowflake.com/en/user-guide/data-availability.html
NEW QUESTION # 294
Which statements reflect valid commands when using secondary roles? (Select TWO).
- A. USE SECONDARY ROLES SUSPEND
- B. Use SECONDARY ROLES NONE
- C. Use SECONDARY ROLES RESUME
- D. USE SECONDARY RLES ALL
- E. USE SECONDARY ROLES ADD <Role Name>
Answer: A,B
NEW QUESTION # 295
When would Snowsight automatically detect if a target account is in a different region and enable cross-cloud auto-fulfillment?
- A. When using a Direct Share with another account
- B. When using a personalized listing on the Snowflake Marketplace
- C. When using a private listing on the Snowflake Marketplace
- D. When using a paid listing on the Snowflake Marketplace
Answer: D
Explanation:
Snowsight automatically detects if a target account is in a different region and enables cross-cloud auto-fulfillment when using a paid listing on the Snowflake Marketplace. This feature allows Snowflake to manage the replication of data products to consumer regions as needed, without manual intervention1.
NEW QUESTION # 296
When snaring data in Snowflake. what privileges does a Provider need to grant along with a share? (Select TWO).
- A. USAGE on the specific tables in the database.
- B. USAGE on the specific tables in the database.
- C. USAGE on the database and the schema containing the tables to share
- D. MODIFY on 1Mb specific tables in the database.
- E. OPEBATE on the database and the schema containing the tables to share.
Answer: B,C
Explanation:
When sharing data in Snowflake, the provider needs to grant the following privileges along with a share:
* A. USAGE on the specific tables in the database: This privilege allows the consumers of the share to access the specific tables included in the share.
* D. USAGE on the database and the schema containing the tables to share: This privilege is necessary for the consumers to access the database and schema levels, enabling them to access the tables within those schemas.
These privileges are crucial for setting up secure and controlled access to the shared data, ensuring that only authorized users can access the specified resources.
Reference to Snowflake documentation on sharing data and managing access:
* Data Sharing Overview
* Privileges Required for Sharing Data
NEW QUESTION # 297
Which services does the Snowflake Cloud Services layer manage? (Choose two.)
- A. Data storage
- B. Metadata
- C. Query execution
- D. Authentication
- E. Compute resources
Answer: B,D
Explanation:
The Snowflake Cloud Services layer manages various services, including authentication and metadata management. This layer ties together all the different components of Snowflake to process user requests, manage sessions, and control access3.
NEW QUESTION # 298
How long can a data consumer who has a pre-signed URL access data files using Snowflake?
- A. Until the expiration time is exceeded
- B. Until the result_cache expires
- C. Indefinitely
- D. Until the retention_time is met
Answer: A
NEW QUESTION # 299
When reviewing the load for a warehouse using the load monitoring chart, the chart indicates that a high volume of Queries are always queuing in the warehouse.
According to recommended best practice, what should be done to reduce the Queue volume? (Select TWO).
- A. Use multi-clustered warehousing to scale out warehouse capacity.
- B. Scale up the warehouse size to allow Queries to execute faster.
- C. Limit user access to the warehouse so fewer queries are run against it.
- D. Migrate some queries to a new warehouse to reduce load
- E. Stop and start the warehouse to clear the queued queries
Answer: A,D
NEW QUESTION # 300
True or False: Loading data into Snowflake requires that source data files be no larger than 16MB.
- A. False
- B. True
Answer: A
Explanation:
By default, COPY INTO location statements separate table data into a set of output files to take advantage of parallel operations. The maximum size for each file is set using the MAX_FILE_SIZE copy option. The default value is 16777216 (16 MB) but can be increased to accommodate larger files. The maximum file size supported is 5 GB for Amazon S3, Google Cloud Storage, or Microsoft Azure stages. To unload data to a single output file (at the potential cost of decreased performance), specify the SINGLE = true copy option in your statement. You can optionally specify a name for the file in the path.
NEW QUESTION # 301
What command is used to export or unload data from Snowflake?
- A. GET @mystage
- B. PUT @mystage
- C. INSERT @mystage
- D. COPY INTO @mystage
Answer: B
Explanation:
The command used to export or unload data from Snowflake to a stage (such as a file in an S3 bucket, Azure Blob Storage, or Google Cloud Storage) is the PUT command. The PUT command is designed to upload data files from a local file system (in the case of SnowSQL or other client) or a virtual warehouse to a specified stage. This functionality is critical for scenarios where data needs to be extracted from Snowflake for use in external systems, backups, or further processing.
The syntax for the PUT command follows the structure: PUT file://<local_file_path> @<stage_name>, where <local_file_path> specifies the path to the file(s) on the local file system that you wish to upload, and < stage_name> specifies the destination stage in Snowflake.
It's important to distinguish that the PUT command is used for exporting data out of Snowflake, whereas the COPY INTO <table> command is used for importing data into Snowflake from a stage. The GET command, on the other hand, is used to download files from a stage to the local file system, essentially the inverse operation of the PUT command.
References:
* Snowflake Documentation on Loading and Unloading Data: [Loading and Unloading Data](https://docs.snowflake.com/en/user-guide/data-load
NEW QUESTION # 302
Where would a Snowflake user find information about query activity from 90 days ago?
- A. account__usage . query history view
- B. information__schema . cruery_history view
- C. information__schema - query history_by_ses s i on view
- D. account__usage.query__history__archive View
Answer: A
NEW QUESTION # 303
A JSON object is loaded into a column named data using a Snowflake variant datatype. The root node of the object is BIKE. The child attribute for this root node is BIKEID.
Which statement will allow the user to access BIKEID?
- A. select data.BIKE.BIKEID
- B. select data:BIKE:BIKEID
- C. select data:BIKE.BIKEID
- D. select data:BIKEID
Answer: C
Explanation:
In Snowflake, when accessing elements within a JSON object stored in a variant column, the correct syntax involves using a colon (:) to navigate the JSON structure. The BIKEID attribute, which is a child of the BIKE root node in the JSON object, is accessed using data:BIKE.BIKEID. This syntax correctly references the path through the JSON object, utilizing the colon for JSON field access and dot notation to traverse the hierarchy within the variant structure.References: Snowflake documentation on accessing semi-structured data, which outlines how to use the colon and dot notations for navigating JSON structures stored in variant columns.
NEW QUESTION # 304
What is the name of the SnowSQLfile that can store connection information?
- A. snowsql.pubkey
- B. config
- C. snowsqLcnf
- D. history
Answer: B
NEW QUESTION # 305
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